🔑 Power and connect, all in one sleek keyring!
The Rolling SquareTAU 2 (2nd Gen) is a versatile power bank keyring designed for modern professionals. With a 2000mAh capacity, it provides emergency power for smartphones while featuring a digital business card function via NFC/QR code. Its compact design and universal compatibility with USB-C, Lightning, and Micro USB make it an essential accessory for anyone on the go.
| Item Dimensions L x W x Thickness | 11.5L x 8.5W x 3.5Th centimetres |
| Item Weight | 1.7 Ounces |
| Battery Cell Type | Lithium Ion |
| Colour | Ice Grey |
| Warranty Type | Manufacturer |
| Charging Time | 90 minutes |
| Number of Outlets | 2 |
| Compatible Devices | Apple, Compatible with all devices, Android |
| Portable | Yes |
| Voltage | 3.7 Volts (AC) |
| Power source | Corded Electric |
| Number of Ports | 2 |
| Connector Types | USB-C, Lightning, Micro USB |
| Battery Capacity | 2000 Milliamp Hours |
| Special Features | LED Indicator Lights, Built In Cable, Fast Charging, Pocket Size |
C**N
Excellent compact charger
The most compact charger it's possible to find (and i have looked hard). There are slimmer chargers but none as pocket sized. It won't fully charge most modern phones but it will give about 25% which could make all the difference if your phone is running out of charge
A**
Handy small power bank
Very handy to have on keys incase you need a little charge to keep you phone from dying. fully charged it gets my iPhone 15 pro max to about 20% battery from 0%.
G**R
Super edc charger
A fantastic edc power bank. Super light with cables attached so great for a super light pack. First rate.
A**O
Didn't charge properly
Didn't charge properly. Not useable.
M**S
A must have!
This is a must have for any phone user, USB-C, Micro USB and lightning all built in, a great emergency battery size but also acts as a charging cable if you are near a USB outlet, all packaged into a very small pocket friendly little unit.A must have as an emergency back up.
J**!
Good idea but lacks power
This is currently priced at £29.90. I like the idea behind it, but it lacks power...It only has a 2000amh battery so you will only get about 30% additional charge if using a new phone, so given the price and the size of others there are better options available. It is also quite heavy to keep on a key ring.
A**Y
Tiny Power bank
This tiny power bank is really well made and a very interesting design. It's on 2000mAh, but that's enough to get your phone charged enough in an emergency situation. The build quality is generally good and the magnetic charger works really well. Overall I like this product
G**H
Very compact charger! Good build quality
This power bank from Rolling Square features a power bank that's on a keyring. It's only a small amount (2000mAh) however, this is perfect for an emergency supply. It includes a USBC port and lightning/micro USB port capable of charging almost any device on the go. The power bank is surprisingly fairly small. It's very impressive how small they have been able to make this. This isn't a powerbank that's expected to replace your power bank or as your sole source of power but as a contingency where you need a boost of battery in an emergency when you forgot to take your charger with you. The charging dock can be wall mounted or fit to a desktop allowing you to hang your keys at the same time which is handy. But you do need to run a wire down for this. The build quality is exceptionally good and this is a well thought out product. 99% of the time you won't be using this (given it's for an emergency) so they have added NFC and QR code functionality to share contact info so someone can scan if found to get contact info. I do wish this had tracking built in which would have been a nice bonus! The cables tuck away with the keyring clip but an easily be taken off to expose them. The wire isn't the longest but they are flat cables so help keep the device very compact.
Trustpilot
1 month ago
1 month ago
